Activate Bartolomé del Presidio by sacrificing Bilbo.
When Bilbo dies, Ratadrabik triggers, creating a nonlegendary token copy of Bilbo that is a 2/2 Zombie.
When the Bilbo token enters the battlefield, it triggers, causing the Ring to tempt you, with the Bilbo token becoming your Ring-bearer.
Resolve the Bartolomé del Presidio ability.
Repeat.

Infinite LTB

Infinite ETB

Infinite sacrifice triggers

Infinite death triggers

Infinite storm count

Infinite +1/+1 counters on a creature

Ratadrabik of Urborg

Bartolomé del Presidio

Bilbo, Retired Burglar

Cast Xorn by paying {2}{R}.
Holding priority, activate Myojin by removing an indestructible counter from it, copying the Xorn spell three times.
Resolve all Xorn spells.
Deal combat damage to an opponent using Bilbo.
Bilbo's second ability triggers, creating five Treasure tokens due to the four Xorns.
Move to your postcombat main phase.
Activate the Treasures by tapping and sacrificing them, adding {3}{R}{R}.
Activate Aggravated Assault by paying {3}{R}{R}, causing you to untap all creatures you control and to get an additional combat and main phase after this one.
Repeat from step 4.

Infinite combat damage

Infinite combat phases

Infinite mana creatures you control can produce

Infinite untap of creatures you control

Myojin of Cryptic Dreams

Xorn

Aggravated Assault

Cast Xorn by paying {2}{R}.
Holding priority, activate Myojin by removing an indestructible counter from it, copying the Xorn spell three times.
Resolve all Xorn spells.
Deal combat damage to an opponent using Bilbo.
Bilbo's second ability triggers, creating five Treasure tokens due to the four Xorns.
Activate Time Sieve by tapping it and sacrificing the Treasures, causing you to take an extra turn after this one.
Repeat from step 4 each turn.

Infinite turns

Lock

Time Sieve

Combos with "Bilbo, Retired Burglar"